Our website will be undergoing maintenance between Saturday, May 18, 2024 at 11:30 pm until Sunday, May 19, 2024 at 5:00 pm Eastern Standard Time. During this time frame, no orders can be placed and website access may be limited. We appreciate your patience. Thank you.
Stories & Features

IDEX Health & Science: Fittings 101 Video Series

Apr 26, 2024 by IDEX Health & Science

Learn the basics of connections and fittings with our Fittings 101 Video Series--A practical guide to connections and fittings in your laboratory.


The first of the two major components in a fitting system is called a nut. The nut is responsible for providing the driving force that causes the ferrule to seal. Ultimately, the choice of which nut and which ferrule to use in your system will be dependent upon a number of parameters.



The ferrule compresses against the tubing to hold it in place. Ferrules aren’t nearly as complicated as their nut counterparts, but they do have some distinguishing features to help you determine which ones to use.


How Fittings Work

Fittings have 2 primary functions- leak prevention and external compression. To understand how fittings work, it’s important to know what fittings have to do.


Torque Limiting Technology

Fittings require a certain amount of torque to seal to tubing properly. The amount of torque applied will determine how well the fitting preforms. Too little torque, and the fitting will not seal, while too much torque can stress and damage the fitting, both resulting in leaks.


Download our Fittings 101 Guide

Shop Fittings